Pull-up bar



FIG. 1 is a first perspective view of a first embodiment of a pull-up bar;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side elevation view thereof;

FIG. 6 is a right side elevation view thereof;

FIG. 7 is a top plan the view thereof; and,

FIG. 8 is a bottom plan the view thereof.

The broken lines shown in the drawings are included for the purpose of illustrating portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a pull-up bar, as shown and described. 